You definitely need a new one. If it's got a big ding, it's likely worthless. And the thing is, there's no way you can tell. If you are wearing a helmet for protection, they you need another.

Yeah I will definatly get another for next season, probbably need to get some new goggles to match as well
Probably sees more use with me getting twatted with the safety bar on lifts than anything else